Combine all ingredients in a food processor and blend until smooth.,Season with salt and pepper to taste.,Place in a small bowl.,Can be refrigerated for 1 day, bring to room temperature before using.,______,Preheat grill to high.,Grill shrimp for 2 to 3 minutes on each side, brushing with the butter every 30 seconds, season with salt and pepper to taste.,Serve on platter alongside Tomatillo Salsa.